公开(公告)号：US5784500A

公开(公告)日：1998-07-21

申请号：US666114

申请日：1996-06-21

申请人： Toru Homma ,  Koji Yura ,  Yoshikatu Nakamura

发明人： Toru Homma ,  Koji Yura ,  Yoshikatu Nakamura

IPC分类号： H04N1/403 ,  G06K9/38 ,  G06T5/00 ,  H04N1/40

CPC分类号： G06K9/38 ,  G06K2209/01

摘要： A binarization circuit compares the density value of the target pixel with the density value of surrounding pixels in the vicinity. A judging unit judges whether or not the target pixel is isolated from the surrounding pixels. A detection unit detects the density values of the target pixels which make the target pixels isolated by a binarization process. A calculation unit calculates the accumulated isolated pixel frequencies of each density value detected by the detecting function when the judging unit and the detecting unit have finished processing all of the original image. A determination unit determines a threshold value on the basis of the accumulated isolated pixels frequencies.

摘要翻译： 二值化电路将目标像素的浓度值与附近的周围像素的浓度值进行比较。 判断单元判断目标像素是否与周围像素隔离。 检测单元通过二值化处理检测使目标像素被隔离的目标像素的浓度值。 计算单元计算当判断单元和检测单元已经完成处理所有原始图像时由检测功能检测到的每个浓度值的累计隔离像素频率。 确定单元基于累积的孤立像素频率来确定阈值。

公开(公告)号：US5581628A

公开(公告)日：1996-12-03

申请号：US596422

申请日：1996-02-02

申请人： Yoshikatu Nakamura ,  Nobuaki Takagi ,  Toru Homma

发明人： Yoshikatu Nakamura ,  Nobuaki Takagi ,  Toru Homma

IPC分类号： G06K9/00 ,  B07C3/14 ,  G06K9/20 ,  C06K9/00

CPC分类号： B07C3/14

摘要： A character reading apparatus including functions for storing size information of an object to be read, an inherent image included in the object, and position information about a read area of the object, from which information is to be read, in advance, in correspondence with each other, functions for scanning the object and obtaining an actual image, functions for measuring a size of the object, functions for comparing an original image corresponding to the size of the object, stored in the storing functions, with the actual image of the object, obtained by the scanning functions, on the basis of the measurement result obtained by the measuring functions, functions for, when the comparing functions determined that the original image coincides with the actual image, determining the position information about the read area, stored in correspondence with the actual image, as a read area of the object, and functions for reading a character from an original image of the read area determined by the read area determining functions.

摘要翻译： 一种字符读取装置，包括用于存储要读取的对象的大小信息，包括在对象中的固有图像的功能，以及关于要从中读取信息的对象的读取区域的位置信息，预先对应于 彼此具有用于扫描对象和获得实际图像的功能，用于测量对象的大小的功能，用于将存储在存储功能中的与对象的尺寸相对应的原始图像与对象的实际图像进行比较的功能 通过扫描功能获得的，基于由测量功能获得的测量结果获得的功能，当比较功能确定原始图像与实际图像一致时，确定与对应的存储的读取区域的位置信息 确定实际图像作为对象的读取区域，以及从读取区域的原始图像读取字符的功能 d通过读取区域确定功能。

公开(公告)号：US5790701A

公开(公告)日：1998-08-04

申请号：US464347

申请日：1995-06-05

申请人： Toru Shijo ,  Yoshikatu Nakamura ,  Toru Homma

发明人： Toru Shijo ,  Yoshikatu Nakamura ,  Toru Homma

IPC分类号： G06K9/46 ,  G06K9/00 ,  G06K9/48 ,  G06K9/62 ,  G06K9/56

CPC分类号： G06K9/48 ,  G06K2209/01

摘要： A character recognition apparatus comprises a photoelectric conversion section that converts image information including the characters to be recognized into multi-valued image information according to image density, an edge extracting circuit that creates edge image information indicating the outline of image density on the basis of the multi-valued image information from the photoelectric conversion section, and a recognition circuit that computes a distribution of a direction component so as to create a feature vector and recognizes characters on the basis of the direction feature vector.

摘要翻译： 一种字符识别装置，包括：光电转换部，其根据图像浓度将包含要识别的字符的图像信息转换为多值图像信息;边缘提取电路，其根据图像密度生成表示图像密度的轮廓的边缘图像信息 来自光电转换部的多值图像信息和计算方向分量的分布的识别电路，以便创建特征向量并且基于方向特征向量来识别字符。

公开(公告)号：US5805740A

公开(公告)日：1998-09-08

申请号：US966710

申请日：1997-11-10

申请人： Nobuaki Takagi ,  Seietsu Nara ,  Yoshikatu Nakamura

发明人： Nobuaki Takagi ,  Seietsu Nara ,  Yoshikatu Nakamura

IPC分类号： G06K7/00 ,  B07C3/14 ,  G06K7/14 ,  G06K9/42 ,  G06K9/34 ,  G06K9/36 ,  G06K9/44

CPC分类号： B07C3/14 ,  G06K7/14 ,  G06K7/1443 ,  G06K7/1456

摘要： A bar-code field detecting apparatus first differentiates, in X and Y directions, image data of a document including a bar code, the position of which is not determined. It then expands each of the differential images in the direction opposite to the direction in which the image data is differentiated. Expanded images are subjected to bar-code field detection.

摘要翻译： 条形码字段检测装置首先在X和Y方向上区分包含条形码的文档的图像数据，该条形码的位置未确定。 然后在与图像数据区分的方向相反的方向上扩展每个差分图像。 扩展图像经过条形码字段检测。

公开(公告)号：US5381488A

公开(公告)日：1995-01-10

申请号：US786046

申请日：1991-10-31

申请人： Masato Suda ,  Yoshikatu Nakamura ,  Nobuaki Takagi

发明人： Masato Suda ,  Yoshikatu Nakamura ,  Nobuaki Takagi

IPC分类号： G06K9/32 ,  G06K9/38

CPC分类号： G06K9/32 ,  G06K2209/01

摘要： A character reading apparatus optically reads a recording medium and stores an image information as multi-value image in the multi-value image memory (3). The image information stored in the multi-value image memory (3) is scanned in the horizontal direction (character line direction). The maximum value for the pixel data of each line is detected by maximum density value extraction unit (4). When all the scanning in the horizontal direction has been completed, maximum value data (A1) is obtained. Differential data (A2) is obtained by differentially processing this maximum value data (A1), and a domain is obtained as the height of the character line. When the height of the character line have been obtained, the image information of the multi-value image memory (3) is scanned in the vertical direction. As in the horizontal direction, the maximum values for each scan in the vertical direction are extracted by maximum density value extraction unit(4). When all the scanning in the vertical direction has been completed, maximum value data (B1) is obtained. Differential data (B2) is obtained by differentially processing maximum value data (B1). The position of each character is obtained from differential data (B2). Then, character identification is executed by sending the portion of the multi-value image information within the domains of the character line and character positions to the character identification unit (6).

摘要翻译： 字符读取装置光学地读取记录介质，并将图像信息作为多值图像存储在多值图像存储器（3）中。 存储在多值图像存储器（3）中的图像信息在水平方向（字符行方向）被扫描。 通过最大密度值提取单元（4）检测每行的像素数据的最大值。 当水平方向的所有扫描都完成时，获得最大值数据（A1）。 通过对该最大值数据（A1）进行差分处理，获得差分数据（A2），得到域作为字符行的高度。 当已经获得字符行的高度时，多值图像存储器（3）的图像信息在垂直方向上被扫描。 与水平方向一样，通过最大浓度值提取单元（4）提取垂直方向上的每个扫描的最大值。 当在垂直方向上的全部扫描已经完成时，获得最大值数据（B1）。 差分数据（B2）通过差分处理最大值数据（B1）获得。 从差分数据（B2）获得每个字符的位置。 然后，通过将字符行和字符位置的域内的多值图像信息的一部分发送到字符识别单元（6）来执行字符识别。

公开(公告)号：US5822455A

公开(公告)日：1998-10-13

申请号：US570973

申请日：1995-12-12

申请人： Tikara Sano ,  Yoshikatu Nakamura

发明人： Tikara Sano ,  Yoshikatu Nakamura

IPC分类号： B07C3/14 ,  G06K9/00 ,  G06K9/34 ,  G06T7/60 ,  G06K9/46

CPC分类号： G06K9/346 ,  G06K2209/01

摘要： A line image detection apparatus having an image input function for inputting an image on a document. The image includes a rectangular character string and a linear line drawn along the character string. The line detection apparatus has a function for detecting a character string image from the image, a function for forming a projection image on the basis of the distance from a lower end of the character string image to each first black pixel found in the character string image in the vertical direction, and a function for comparing the distance from the lower end of the character string image to each first black pixel, with a predetermined threshold value, thereby to define a plurality of "slice 0" areas included in the projection image. The distance, in each of the "slice 0" areas, from the lower end of the character string image to each first black pixel is lower than the predetermined threshold value. The apparatus also includes a function for determining an interval distribution of the interval between each adjacent pair of the "slice 0" areas determined by an area determination means, and a function for detecting the linear line on the basis of the interval distribution.

摘要翻译： 一种线图像检测装置，具有用于在文件上输入图像的图像输入功能。 图像包括矩形字符串和沿着字符串绘制的线性线。 线检测装置具有从图像检测字符串图像的功能，基于从字符串图像的下端到在字符串图像中找到的每个第一黑色像素的距离来形成投影图像的功能 并且具有用于将字符串图像的下端与每个第一黑色像素的距离与预定阈值进行比较的功能，从而定义包括在投影图像中的多个“切片0”区域。 在每个“切片0”区域中，从字符串图像的下端到每个第一黑色像素的距离低于预定阈值。 该装置还包括用于确定由区域确定装置确定的每个相邻的“切片0”区对之间的间隔的间隔分布的功能以及基于间隔分布检测线性线的功能。

公开(公告)号：US5737437A

公开(公告)日：1998-04-07

申请号：US413890

申请日：1995-03-30

申请人： Akihiko Nakao ,  Nobuaki Takagi ,  Yoshikatu Nakamura

发明人： Akihiko Nakao ,  Nobuaki Takagi ,  Yoshikatu Nakamura

IPC分类号： B07C3/14 ,  G06K9/20 ,  G06K9/00

CPC分类号： G06K9/00469

摘要： In an apparatus for detecting an address region on postal matter, an image having address information of the postal matter is converted to a digital signal, and a region associated with the digital signal is found. The associated region is converted to rectangular data indicating a rectangular region circumscribed with the associated region. The rectangular data is subjected to predetermined processing and compared with already known information, thereby easily and exactly effecting address region judgment.

摘要翻译： 在用于检测邮政地址区域的装置中，将具有邮政地址信息的图像转换为数字信号，并且找到与数字信号相关联的区域。 相关联的区域被转换为指示与相关联区域包围的矩形区域的矩形数据。 对矩形数据进行预定处理并与已知信息进行比较，从而容易且精确地进行地址区域判断。

公开(公告)号：US5617481A

公开(公告)日：1997-04-01

申请号：US407091

申请日：1995-03-20

申请人： Yoshikatu Nakamura

发明人： Yoshikatu Nakamura

IPC分类号： B07C3/14 ,  G06K9/20 ,  G06K9/00

CPC分类号： G06K9/2054 ,  G06K2209/01

摘要： This invention is a mail address reading apparatus including a circuit for detecting image data of a mail, a circuit for detecting marks indicating the position of an address area from the image data, and a circuit for specifying the address area of the image data based on the position indicated by the marks and reading the address of the image data in the address area. In this apparatus, the address area can be specified by the detected mark position without causing any problem even if image information other than the address is present and the address can be correctly read.

摘要翻译： 本发明是一种邮件地址读取装置，包括用于检测邮件的图像数据的电路，用于从图像数据检测指示地址区域的位置的标记的电路，以及用于根据图像数据指定图像数据的地址区域的电路 由标记指示的位置并读取地址区域中的图像数据的地址。 在该装置中，即使存在除了地址以外的图像信息，并且可以正确地读取地址，也可以通过检测到的标记位置来指定地址区域而不引起任何问题。

公开(公告)号：US5392366A

公开(公告)日：1995-02-21

申请号：US841326

申请日：1992-02-25

申请人： Yoshikatu Nakamura

发明人： Yoshikatu Nakamura

IPC分类号： G06F5/01 ,  G06F7/24 ,  G06F7/552 ,  G06K9/64 ,  G06K9/62

CPC分类号： G06F7/552 ,  G06F5/012 ,  G06F7/24 ,  G06K9/64 ,  G06F2207/5523

摘要： In a pattern recognition apparatus constituted by a one-chip LSI (large scale integrated), product-sum calculations are performed between an input pattern to be recognized and a plurality of reference patterns by a product-sum circuit. The plurality of reference patterns are stored in an external memory used as a dictionary. The similarity values obtained by the product-sum calculations are subjected to floating processing in a floating circuit. The similarity values, which have undergone floating processing, are sorted in the order of larger magnitudes. The sorted similarity values are read out by a host CPU (central processing unit).

摘要翻译： 在由单片LSI（大规模集成）构成的图案识别装置中，通过乘积和电路在待识别的输入图案与多个基准图案之间进行乘积和计算。 多个参考图案存储在用作字典的外部存储器中。 通过乘积和计算获得的相似度值在浮置电路中进行浮动处理。 经过浮动处理的相似度值按较大幅度的顺序进行排序。 排序的相似度值由主机CPU（中央处理单元）读出。